Liminatus today announced plans to initiate a Phase 1 clinical trial evaluating IBA101, a next-generation CD47-blocking monoclonal antibody designed to engage innate immune pathways and complement established immuno-oncology therapies.

IBA101 is engineered to target the CD47 "don't-eat-me" signal, a mechanism that enables tumor cells to evade innate immune surveillance. By enhancing macrophage-mediated tumor clearance and antigen presentation, IBA101 is designed to work alongside PD-1/PD-L1 checkpoint inhibitors, which remain the backbone of treatment across multiple solid tumor indications.

The planned Phase 1 study is designed as a seamless clinical program, beginning with monotherapy dose escalation to evaluate safety, tolerability, and pharmacokinetics, followed by combination cohorts with PD-1/PD-L1 therapies within the same protocol. This approach is intended to efficiently generate early clinical and translational insights while supporting disciplined dose selection for future development.